"You might hold an ethical position that it's wrong to lie, but if you have plans for a war in Iraq, and you want to keep them secret for practical reasons - to reduce casualties, perhaps - and someone asks you about those plans, you may need to lie for a 'good' outcome"
"The law condemns and punishes only actions within certain definite and narrow limits; it thereby justifies, in a way, all similar actions that lie outside those limits"